XKB: Add debug key actions for grabs & window tree

Replicate 7d2543a3 but for
all types of X servers
4 jobs for xkb-debug-key-actions in 5 minutes and 3 seconds (queued for 1 second)
Status Job ID Name Coverage
  Docker Image
passed #3886857
debian-testing

00:00:25

 
  Build And Test
passed #3886858
autotools

00:04:38

passed #3886859
meson

00:01:08

passed #3886860
meson-noglamor

00:01:00